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賺賠：例2的副本
Author:
冯圣军
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
找出對稱軸
兩組對邊相等的四邊形
畫出對稱圖形
球體建築師
Discover Resources
圆锥曲线定义的拓展（卡西尼卵形线）
Quiz on Rotation 旋轉變換：測驗
(003)80201辛宇婕
蚂蚁爬行
第八周作业2
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Solids or 3D Shapes
General Quadrilateral
Sphere
Sine
Ratios